def print_max(x, y):
    '''Prints the maximum of two numbers.打印两个数值中的最大数。

    The two values must be integers.这两个数都应该是整数'''
    x = int(x)
    y = int(y)

    if x > y:
        print(x, 'is maximum')
    else:
        print(y, 'is maximum')


print_max(3, 5)
print(print_max.__doc__)
